I really need that chart that is not supported

If you really need to add a chart that is not supported in SlideMagic, I would create it in Microsoft Excel, take a screen shot of the chart (in presentation mode), and add it to your SlideMagic chart as an image.

Make sure to harmonise the colours (shades of grey and one accent colour), and fonts. SlideMagic uses Roboto Condensed (bold) which is a free font that can be downloaded here.